水布垭电站泄洪对部分设备运行影响分析  

On the Impact of Flood Discharge on Operation of Equipment in Shuibuya Hydropower Station

作　　者：陈虎 CHEN Hu(Hubei Qingjiang Hydroelectric Development Co.,Ltd.,Yichang 443000,China)

机构地区：[1]湖北清江水电开发有限责任公司,湖北宜昌443000

出　　处：《水电与新能源》2023年第5期71-74,78,共5页Hydropower and New Energy

摘　　要：水布垭水库具有多年调节能力,开闸泄洪情况较少,但2016年至2021年3次泄洪期间,地下厂房渗水量明显增加,排水泵等设备启动频繁,间隔时间缩短,运行时间延长。为比较泄洪量不同对有关设备运行影响,选取2次泄洪期间相关设备运行情况进行分析表明,相比2016年的泄洪,2020年泄洪持续时间更长,但最大泄洪流量略小,209.00 m高程厂外排水泵、右护排水泵启动间隔时间更长,176.50 m高程厂外排水泵启动间隔时间变短,机组技术供水进口压力值增大幅度更小,电厂上述设备总体运行稳定。Shuibuya Reservoir is of a multi-year regulation capacity,thus the frequency of flood discharge is relatively low.While,during the three flood discharge periods from 2016 to 2021,the seepage flow of the underground powerhouse was significantly increased,and the drainage pump and other equipment started frequently with shorter interval time and longer operation time.To study the impact of different flood discharge flows on the operation of relevant equipment,the operation performance of the equipment during two flood discharge periods are compared and analyzed.The results show that the flood discharge duration in 2020 is longer than that in 2016,while the maximum flood discharge flow is slightly smaller.The startup intervals of the external drainage pump at 209.00m elevation and the right protection drainage pump are longer,and the startup interval of the external drainage pump at 176.50m elevation is shorter.The pressure increase of the technical water supply inlet is smaller.The operation of the mentioned equipment in the station is generally stable.

关 键 词：水布垭电厂 泄洪 设备运行 影响分析 

分 类 号：TV698[水利工程—水利水电工程]